Production method of 5-series aluminum alloy strip
What is Al technical title?
Al technical title is built by PatSnap Al team. It summarizes the technical point description of the patent document.
A technology of aluminum alloy strip and production method, which is applied in the field of aluminum alloy, can solve the problems of reducing usage, increasing the service life of materials, reducing costs, etc., and achieves the effect of improving the formability and strength of materials, improving performance, and meeting product quality requirements
Pending Publication Date: 2022-03-25
邹平宏发铝业科技有限公司 +1
View PDF10 Cites 0 Cited by
Summary
Abstract
Description
Claims
Application Information
AI Technical Summary
This helps you quickly interpret patents by identifying the three key elements:
Problems solved by technology
Method used
Benefits of technology
Problems solved by technology
[0004] The recrystallization temperature of aluminum alloy hot-rolled coils is generally above 300°C, and the strength of the material is low (close to the fully annealed state), so the state of aluminum alloy hot-rolled strips is generally F state, and there is no requirement for mechanical properties, but if it can be guaranteed In the case of material forming performance, it can also improve the material strength and surface quality, which will greatly increase the service life of the material, reduce the amount of material per unit area, reduce costs and expand other uses
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more
Image
Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
Click on the blue label to locate the original text in one second.
Reading with bidirectional positioning of images and text.
Smart Image
Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0028] The state of the alloy described in this embodiment: 5754 / F, the thickness of the finished product: 2.5mm, adopt the following technical route: melting and casting→sawing and milling→heating→hot rough rolling→hot finish rolling→rapid cooling→bending / stamping, wherein, specifically The process parameters are as follows:
[0029] 1) Melting and casting: the mass fraction of the chemical composition of the ingot after melting and casting is Si: 0.06%, Fe: 0.21%, Cu: 0.06%, Mn: 0.22%, Mg: 2.8%, Cr: 0.25%, Zn: 0.109 %, Sc: 0.2%, Zr: 0.1%, the balance is Al; melting temperature 750°C, refining temperature 745°C, DC casting speed 56mm / min, casting temperature 720°C, water temperature 20-30°C; ingot thickness 480mm ×Width 1680mm.
[0030] 2) Sawing and milling: ingot gate sawing 50mm, dummy head sawing 250mm, large face milling 12mm, side milling 7mm.
[0031] 3) Heating: In the heating process, the heating temperature is 460° C., and the holding time for the metal to warm is...
Embodiment 2
[0036] The present embodiment comprises most of the operation steps of embodiment 1, and its difference is:
[0037] 4) Hot rough rolling: 15 passes of hot rough rolling, the rolling speed of the first 11 passes is 6m / s, the rolling speed of the last four passes is 0.5m / s, the thickness of the intermediate billet is 32mm, the rolling temperature of the intermediate billet is 445°C, The down rate is 35%.
Embodiment 3
[0039] The present embodiment comprises most of the operation steps of embodiment 1, and its difference is:
[0040] 4) Hot rough rolling: 15 passes of hot rough rolling, the rolling speed of the first 11 passes is 3m / s, the rolling speed of the last four passes is 0.5m / s, the thickness of the intermediate billet is 32mm, the rolling temperature of the intermediate billet is 445°C, The down rate is 35%.
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more
PUM
Property
Measurement
Unit
thickness
aaaaa
aaaaa
thickness
aaaaa
aaaaa
thickness
aaaaa
aaaaa
Login to view more
Abstract
The invention belongs to the technical field of aluminum alloy, and particularly relates to a production method of a 5-series aluminum alloy strip. The production method adopts the following technical route: casting, sawing and milling, heating, hot rough rolling, hot finish rolling, rapid cooling and bending / stamping. The hot rough rolling adopts segmented rolling and comprises 13-18 passes, the rolling speeds of the first 9-14 passes are 3-6m / s, the rolling temperature of an intermediate billet is 450-520 DEG C, and the reduction rate of each pass is greater than 30%; and the rolling speed of the last four passes is reduced to 0.1-1.5 m / s, and the rolling temperature of the intermediate billet is 430-480 DEG C. According to the production method of the 5-series aluminum alloy strip, the processes of fusion casting, sawing and milling, heating, hot rough rolling, hot finish rolling, rapid cooling and bending / stamping are adopted, high-low-speed segmented rolling is adopted in the hot rough rolling process, and crystalline grains are fully crushed to form fine crystalline grains at the front section by adopting the great machining rate; and sufficient recrystallization is ensured at an extremely low rolling speed in the rear-section pass. And the formability and strength of the material are improved through fine grain strengthening, so that the aluminum alloy material has better subsequent processability and durability.
Description
technical field [0001] The invention belongs to the technical field of aluminum alloys, and in particular relates to a production method of a 5-series aluminum alloy strip. Background technique [0002] 5-series aluminum alloys are widely used in ship plates, automobile plates, transport tanks, tank lid pull rings, and require excellent processing performance, high Products with corrosion resistance, high fatigue strength and high weldability. The various uses of the above aluminum alloys need to first ensure the excellent formability of the material and ensure that the aluminum alloy material does not crack during the stamping and bending process. At present, there are usually two processes to improve the formability of aluminum alloys: 1. By improving the The final rolling temperature of the material can be increased to improve the formability by increasing the degree of recrystallization, but this process will reduce the strength of the aluminum alloy hot-rolled sheet an...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more
Application Information
Patent Timeline
Application Date:The date an application was filed.
Publication Date:The date a patent or application was officially published.
First Publication Date:The earliest publication date of a patent with the same application number.
Issue Date:Publication date of the patent grant document.
PCT Entry Date:The Entry date of PCT National Phase.
Estimated Expiry Date:The statutory expiry date of a patent right according to the Patent Law, and it is the longest term of protection that the patent right can achieve without the termination of the patent right due to other reasons(Term extension factor has been taken into account ).
Invalid Date:Actual expiry date is based on effective date or publication date of legal transaction data of invalid patent.
Login to view more